Lux meter point gridPoint labels keep the average, low point and spread tied to the same measured plane.

Table PDFLux Meter Grid Worksheet Table

Download the table with the page URL and retrieval date for offline lighting checks.

Grid item	What to label	Why it matters	Boundary
Point ID	A1, A2, centre, desk-left, bench-front or another stable point label.	Repeatable labels make later readings comparable.	A small grid is not a formal uniformity assessment.
Plane and height	Floor, desktop, bench, shelf face or vertical plane with height where relevant.	Lux values change when the assessed plane changes.	Do not compare readings from different planes as one result.
Lighting state	Electric lights on or off, dimming state, scene and control setting.	Measured illuminance can change with output and control state.	Control programming remains outside the reading log.
Daylight condition	Time, sky, blind state, direct sun and daylight contribution where relevant.	Daylight can change the reading even when the luminaires are unchanged.	One daylight condition is not an all-day result.
Obstruction note	Furniture, racking, person shadow, open door, display or temporary object near the point.	Obstructions can explain local low or high readings.	Do not hide changed obstruction states inside one comparison.
Comparison basis	Same point set, same plane and same control state before readings are compared.	The worksheet shows whether a before/after comparison is fair.	The table does not verify a project or workplace outcome.

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